user
You need to explain the difference between a structured query language and a non-structured query language.

Answer:
assistant
A structured query language (SQL) is a domain-specific language used in programming and designed for managing data held in a relational database management system. It allows for querying and manipulating the data in a structured form. A non-structured query language (NQL) is a programming language designed for managing data that is not as structured or organized as a relational database. It allows for querying and manipulating data that is more unstructured and not necessarily organized in relation to a database.